Cipirin, also called flunarizine capsules, is a calcium channel blocker which prevents cell damage caused by pathological intracellular calcium overload due to ischemia and other causes. Cipirin has the following effects: 1) relieving vasospasm, it has a sustained inhibitory effect on persistent vasospasm caused by vasoconstrictive substances, especially more pronounced in the basilar and internal carotid arteries; 2) vestibular inhibition, it increases blood flow in the small cochlear artery and improves vestibular organ circulation; 3) antiepileptic effect, Cipirin blocks pathological calcium overload in nerve cells and prevents paroxysmal depolarization, cell Discharge, thus avoiding seizures; 4, protect the myocardium, significantly reduce ischemic myocardial damage; 5, flunarizine still has the effect of improving renal function, can be used in chronic renal failure; In addition, cipirin also has the effect of antihistamine. The indications of Cipiline are cerebral blood supply deficiency, vertebral artery ischemia, after cerebral thrombosis, etc. In addition, it can also be used to treat tinnitus and cerebral dizziness, prevention of migraine headache, adjuvant treatment of epilepsy, etc.